C3132121111331312113313331333133313331333112331333133311331323232321   >>    C313212111133131211331333133313331333133311233133313331133132323232   <<    C3132121111331312113313331333133313331333112331333133311331323232323   >>      C3132121111331312113313331333133313331333112331333133311331323232322   >>